A person exhibiting a recessive characteristic must be heterozygous for that gene. True or False
Answer:true
Explanation: cause heterozygous means that 2 or more of offspring genes are recessive
Cheetahs are the largest of the small cats. The cheetah population once covered all of Africa and Asia. Now cheetahs are an endangered species. Loss of habitat, commercial farming, and development are major causes of its decline. Today, there are fewer than 12,000 cheetahs left on the planet. Explain, using your knowledge of natural selection, why it may be difficult to stop the decline of the cheetah population.
Answer:
it is difficult because of poaching to get their skin, and also baby cheetahs are killed by other animals like lions etc ,
Explanation:
it is difficult because of poaching to get their skin, and also baby cheetahs are killed by other animals like lions etc
Natural selection has been the factor that includes the differential survival of the adapted individual. It may stop the decline of the Cheetah due to climate change, and habitat destruction.
What is natural selection?Natural selection is defined as the preference procedure that allows the adapted organism to survive and reproduce to the change in climatic conditions. It has been part of the evolution.
The decline in the cheetah population is difficult to stop as the climatic conditions have changed a lot and the habitats of the organisms have been destructed at a larger rate. Hunting by humans for their skins and claws has increased over years.
The genes of the cheetah population have been one of the factors that hinder their natural selection. This all together possesses a threat to the cheetah population.
Therefore, it is difficult for the cheetah to survive.
Learn more about natural selection, here:
https://brainly.com/question/9830102
#SPJ2
can humans perform osmosis?
Answer:
Osmosis is the movement of water from areas of high concentrations to lower concentrations across a semi permeable membrane. It occurs over these membranes in cells of the body alllowing water to move into and out of them.
Explanation:
Both parents can roll their tongue, yet their child cannot. What must the parent's
genotype be?
A. Parents must both be homozygous dominant
B. Parents must both be homozygous recessive
C. Parents must both be heterozygous
D. IDK
ANSWER ASAP please!!
Answer:
to control what enters and leaves the cell
Explanation:
The nucleus controls the functions of the cell and a cell wall provides structure for a plant cell.
Which of these are long strands of DNA?
A. Chromosomes
B. Fossils
C. Genes
D. Mutations
Answer:
Chromosomes
Explanation:
process of fertilized eggs
Answer:
Explanation:
Fertilization occurs when the nucleus of both a sperm and an egg fuse to form a diploid cell, known as zygote. The successful fusion of gametes forms a new organism.
Which of the following is the era in which we now live?
We are currently living in the Cenozoic Era (of the Phanerozoic Eon.)
These finches have a common ancestor and live close to each other on different islands. Why are their beaks different? *
Answer:They live in different environments and to survive many finches have different beaks.
Explanation:
What is the purpose of a trophic pyramid?
Explanation:
An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.
what is the best definiton of genetically motified foods? HURRYYY!!! please and thank youuuu
Answer:
GMO, or genetically modified foods, are foods that are messed with genetically by science to better benefit the human race. For example, scientists might replace genes that give corn a lower harvest, with a different gene in corn that makes a higher amount of harvest.
Explanation:
You could also look it up. Just search "GMO".
Marijuana is a(n)
a. depressant
b. stimulant
c. hallucinogen
d. opiate
Answer:
Marijuana is a stimulant.
Answer: Marijuana is a stimulant.
pair of identical chromosomes (chromosomes that contain the same genes) from each parent, which all organisms produced by sexual reproduction receive
Answer:
the correct answer is homologous pair
Explanation:
WILL MARK BRAINLIEST
plz help
Which of these is an inherited trait?
1 point
braided hair
pierced ears
ability to read
eye color
2. What the main source of oxygen in an ecosystem? *
1 point
combustion from cars
respiration by plants
photosynthesis by plants
respiration by animals
3. Trout are found in rapidly flowing streams that have high levels of oxygen, stony bottoms, and an abundance of aquatic insects. These streams represent a trout’s ______________. *
1 point
niche
habitat
biome
community
4. Which combination of sex chromosomes results in a male human being? *
1 point
XX
XY
YY
NEITHER XX OR YY
5. Which of the following is not a function of the skeletal system? *
1 point
supports the body
works with other body systems to allow movement
manufactures new blood cells
sends signals to the brain
6. Which of the following pairs of structures share the function of reabsorbing water into the body? *
1 point
lungs, stomach
bone marrow, small intestine
hypothalamus, pancreas
large intestine, kidney
7. A trait the helps an organism to survive and reproduce is called *
1 point
variation
species
adaptation
selection
8.
Which structure belongs ONLY in the part of the circle labeled plant cells? *
1 point
cell membrane
cell wall
cytoplasm
vacuole
9.
According to this energy pyramid, what would the snake be classified as? *
1 point
producer
herbivore
carnivore
omnivore
10, Which of these does a virus need to multiply? *
1 point
chloroplasts from a host cell
a host cell to provide oxygen
new ADP from a host cell
a host cell to replicate the virus's DNA
11. Which of the following shows the correct order from smallest to largest? *
1 point
community ->organism->population->ecosystem
organism->community->ecosystem->population
population->ecosystem->community ->organism
organism->population->community->ecosystem
12.
According to the above Venn diagram, which feature does a Bald Eagle have in common with an American Robin? *
1 point
square tail
sharp talons
curved beak
perching feet
20 POINTS WILL MARK BRAINLIEST ANSWER
Answer:
1. Inherited trait: Eye Color
2. main source of oxygen: respiration by plants
3. These streams represent a trout’s habitat
4. male human: XY
5. manufactures new blood cells
6. large intestine, kidney
7. variation
8. cell wall
9. carnivore
10. a host cell to replicate the virus's DNA
11. organism->population->community->ecosystem
12. sharp talons (Im not sure)
I hope this helps you! :)
Three friends were walking along a Beach in New England. They looked closely at the Sand and noticed it was made up of tiny particles of Rock. They had different ideas about where the Sand came from.
Answer:
the probability (assumptions)of where the sand came from by the three friends may be
a. the thought that the sand came from distant mountains and landforms.
b. the thought that the sand came from rocks on the ocean floor.”
c. he thought that the sand came from undersea mountains and sea floor formations.
the best answer to this is the first probability answer (a)the thought that the sand came from distant mountains and landforms.
it is very essential as a student to have an idea about weathering, erosion, deposition, and landforms. if students/ individuals can identify/recognize that sand on a beach may have come from distant mountains and landforms due to rock weathering , deposition or erosion.
Explanation:
What characteristic do insects, centipedes, and millipedes share? Check all that apply
three pairs of legs
one pair of wings
one pair of antennae
two body sections
Answer:
One pair of antennae
Explanation:
They have more than three pairs of legs, centipedes and millipedes do not have wings, and they have more than two body sections.
Answer:
C is correct
Explanation:
what is influenced only by heredity and not environmental factors? Can someone plz help me!!!
a.
obesity
b.
diabetes
c.
heart disease
d.
muscular dystrophy
Answer:
B
Explanation:
Obesity is cause by accumulating fat, Heart disease is not hereditary, and muscular dystrophy an be caused by stress according to the BBC
This illustration shows a strand of mRNA and the complimentary tRNA molecules that can base pair with the mRNA codons. What is the correct sequence of amino acids?
Answer:
Since you haven't attached the illustration for finding out the amino acid sequence from the mRNA sequence from, I'll explain the general principle for it.
The mRNA represents the code for translation into specific amino acids which will form the protein. A group of three bases, a triplet code, is referred to as a codon. The tRNA is responsible for recognizing the codon and matching the anticodon that will attach to the mRNA and generate the chain of appropriate amino acids.
Hope that answers the question, have a great day!
what does DNA stand for and what are the three main components of DNA
ANSWER:
DNA stands for:
Deoxyribonucleic acid.
And the three components are
-Nucleic acid
-Deoxyribose
-Phosphate group
Which of the following accurately describes one part of the hierarchy of organization in living systems?
A : Tissues are made up of various cell types.
B : Organs are made of of various organ systems.
C : Cells are made of various organs.
D : Tissues are made up of various organisms.
Answer:
A : Tissues are made up of various cell types
Explanation:
B : can't be correct because a system is made of many things, so an organ system is made of many organs. As such, it doesn't make sense for organ systems to make up organs.
C : can't be correct because cells make tissues, and tissues make organs, so cells can't be made of organs
D : can't be correct because an organism is the whole living being. Organisms are made of organs, and organs are made of tissues, so tissues can't be made of organisms.
That just leaves A!
Select whether each statement is describing xylem or phloem.
This tissue’s function is to transport sugars from the leaves to the other areas of the plant.
This tissue’s function is to transport water from the roots to the leaves.
Answer:
1-Phloem
2-Xylem
Explanation:
Lipids are made mainly of
Answer:
Lipids are composed mainly of carbon and hydrogen. but they can also contain oxygen, nitrogen, sulfur, and phosphorous. They provide nutrients for organisms, store carbon and energy, play structural roles in membranes, and function as hormones, pharmaceuticals, fragrances, and pigments.
Explanation:
I hope this helps! :)
Answer:
triglyceride.
Explanation:
explain the difference between weathering and erosion? how is deposition also involved in this three step cycle?
Answer:
Erosion is the process by which natural forces move weathered rock and soil from one place to another. ... Deposition occurs when the agents (wind or water) of erosion lay down sediment. Deposition changes the shape of the land. Erosion, weathering, and deposition are at work everywhere on Earth
Explanation:
because thanos said so
why would wearing sunscreen help prevent melanoma
Answer:
Sunscreen reduces the level of UV radiation, which causes damage to DNA, and slows the development of melanoma
25. Refraction is
Your answer
▶ Refraction Definitions :
The bending of light from its straight line path when it travels from one medium to another.
▶Definition: The change in direction of a ray of light when it passes through one media to another with differing optical densities.
▶Definition: A change in the direction of travel of light, sound, or other waves crossing a boundary
▶ Definition: change in direction of light ray when passing one medium to another.
Which is a sustainable practice?
A. Wind farms
B. Clear cutting
C. Flood irrigation
D. Overfishing
Answer:
A. wind farms
Answer:
Wind farms
Explanation:
5 sentence summary of the immune systems function
What might happen when a Hox gene turns other genes on or off?
Answer:
They can alter the phenotype of an organism
With more carbon in the atmosphere, what do you think will happen to the environment
Answer:
Global warming
Extra carbon dioxide in the atmosphere will increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. That increases the Earth's temperature which is also called Global Warming
How does Carbon Cycle through the Earth?
Answer:
it moves when carbon moves from fossil fuels to the atmosphere when fuels are burned when humans burn fossil fuels to power things and then most of the carbon quickly enter the atmosphere as carbon dioxide gas.
Explanation:
