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Romashka-Z-Leto [24]
3 years ago
11

Hormones do not last forever, they have a 1/2 life. True False

Biology
1 answer:
Shtirlitz [24]3 years ago
6 0
True and true and true and true
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What is the allele frequency?
Keith_Richards [23]

Allele frequency is a measure of the relative frequency of an allele on a genetic locus in a population.

Usually it is expressed as a proportion or a percentage.

In population genetics, allele frequencies show the genetic diversity of a species population or equivalently the richness of its gene pool.

The frequencies of all the alleles of a given gene often are graphed together as an allele frequency distribution histogram.

Population genetics studies the different "forces" that might lead to changes in the distribution and frequencies of alleles - in other words, to evolution.

Besides selection, these forces include genetic drift, mutation and migration.

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3 years ago
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As you are on the way to tahiti for a vacation, your plane crash-lands on a previously undiscovered island. you soon find that t
marshall27 [118]
For the answer to the question above, <span>the answer is the organism with Hard and branched, multicellular, covered with a sticky coating. Attached to rocky surfaces. Traps insects in the sticky coating and dissolves them. No mating; releases winged young that fly off and affix to bare rocks. Organism c.
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Rosalind Franklin contribute to the understanding of DNA by
IRINA_888 [86]
Rosalind Franklin contributed to the understanding of DNA by discovering It's shape and structure. 
4 0
3 years ago
Please help me!! 15 points!!!!!
Karolina [17]

Image 1.1 -

Stomata are little moth-like structures in leaves, that, when open, allow the exchange of gases between the plant and the exterior.

Answer:

B.

Image 1.2 -

Without the existance of stomata, the process of transpiration wouldn't be possible if there weren't structures thata allowed the exchange of gases.

Answer:

A.

Image 2 -

So, we can elminate plants because they can photosynthesise; bacteria because they are prokaryotes and can photosynthesise; archaea because they are prokaryotes; hat leaves us with animals and fungi because these cannot photosynthesise and are both eukaryotes.

But, we cannot skip information. It is also said that the organism found has a cell wall, and animals do not have cell walls.

Answer:

C.

Image 4 -

Option 1 = cilia

Option 2 = flagella

Option 3 = pseudopods

Option 4 = pili (they're a meant to attacht to surfaces only bacteria)

Image 5 -

Runner stems are those that grow horizontally, therefore the fourth image with the long horizontal stems.

Rhizome stems are underground stems that can form roots or shoots through their nodes. Therefore, the third image with white background (the one with 2 drawn plants).

Tuber stems are large underground (mostly) structures used as storages for the plant. Therefore, this corresponds to the first image (the one with the white background.

Bulb stems are short and "bulby" stems, whith thick, leaves. Therefore, the second image (the one with the grass background).

Hope it helped,

BioTeacher101

7 0
2 years ago
Dr. flint, a health psychologist, would offer which reason that explains how optimism allows a person to maintain psychological
user100 [1]
For the answer to the question above, I believe that the answer is the <span>Optimists keep up social contact and recreational activities during treatment</span>.
So that the person who he treats will be distracted from his thoughts. I hope my answer helped
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