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3 years ago

Please Help! A.S.A.P!! Will Mark Brainliest!

Biology

2 answers:

saveliy_v [14]3 years ago

6 0

Answer:

Newer layers of earth form on top of older layers, so as we dig, we can see further back in time. Comparing the fossils between the layers can offer evidence of change.

Phyletic gradualism - slow, but constant gradual change; supported by transitional species in the fossil record

Punctuated equilibrium- long periods of no change followed by short periods of rapid change. Can also be supported by the fossil record when no transitional species are found.

kirza4 [7]3 years ago

6 0

Answer: Newer layers of earth form on top of older layers, so as we dig, we can see further back in time. Comparing the fossils between the layers can offer evidence of change. Phyletic gradualism slow, but constant gradual change; supported by transitional species in the fossil record Punctuated equilibrium long periods of no change followed by short periods of rapid change. Can also be supported by the fossil record when no transitional species are found. hope this helps p :) but, i just looked up the sentences and it gave me the answers.

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The primary stimulus for release of adrenal medullary hormones comes from Select one: a. the kidneys. b. aldosterone. c. the ant

Natasha_Volkova [10]

Answer:

Correct answer is ''e'' the sympatetic nervows system

Explanation:

THE ENDOCRINE SYSTEM How does the endocrine orchestra work? 1- Nervous Stimuli to the Hypothalamus  production of releasing (stimulatory) or inhibitory hormones, transported via a portal system of vessels to the anterior pituitary gland 2- Anterior Pituitary Gland  pituitary trophic hormones 3- Pituitary trophic hormones stimulate Peripheral Endocrine Glands  production of peripheral hormones 4- Hormone/Receptor Interactions in target organs  hormone actions 5- Peripheral hormones exert Negative Feedback Mechanisms  supression of hypothalamic & pituitary hormones.

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3 years ago

Read 2 more answers

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victus00 [196]

Answer:

Phospholipids are amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can't, hence forming a bilayer

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3 years ago

Which is the first type of cell to differentiate?

pantera1 [17]

Answer:

blood cell

Explanation:

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3 years ago

n cattle, an autosomal mutation called Dexter produces calves with short stature and short limbs. Embryos that are homozygous fo

timofeeve [1]

Answer:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Explanation:

Dexter is deleterious in homozygous condition, hence, phenotypes are heterozygous.

Roan are also heterozygous.

If dexter allele is represented by D, non dexter individuals will be DD dexter individuals will have the genotype Dd.

If colour in cattle is represented by R, red individuals will be RR, white will be rr, then roan colour will be Rr.

Hence, roan dexter cow and roan dexter bull will both have DdRr genotypes.

Crossing the two: DdRr x DdRr

Progeny:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Others that are either aborted or stillbirths include:

1 ddRR

2 ddRr

1 ddrr

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3 years ago

3)What are some examples of specialized cells

finlep [7]

Answer:

3 Neurons are the specialized cells responsible for allowing all the basic body functions to take place correctly as all the necessary communication happens through them. Muscle cells or myocyte cells are specialized in making all movement possible. These cells have a cylindrical shape that allows them to contract.

Explanation:

4 Each cell must be able to perform as a part of a living organism. Cell specialization is required for cells to perform as a part of a whole living thing. Different cells do different jobs.

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3 years ago