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raketka [301]
3 years ago
8

PLZZZZ HELP QUICK!!!! THANKS

Biology
2 answers:
ANTONII [103]3 years ago
8 0

The answer is D. The plant creates sugar and oxygen from water and carbon dioxide using the sunlight 's energy. I hope this was helpful :)

Fed [463]3 years ago
6 0

Answer:

Which option accurately describes the first two stages of photosynthesis?

Stage 1: The thylakoid captures light energy. Stage 2: Chlorophyll converts it to chemical energy.

Explanation:

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PLZ GUYS I DONT KNOW WHAT TO WRITE ,I NEED UR HELP
zubka84 [21]

Answer: ok ill help:

1. over population happens when too many babies are born and the place gets crowded

2. same thing happens is too many immigrants go to 1 place E.G UK

8 0
3 years ago
Read 2 more answers
10. Researchers observe a large population of birds on a remote island. Birds in the population are found to have either red cre
IgorLugansk [536]
Suppose that the proportion of the white crest alleles (r) is given by w and that of the Red crest allele (R) is given by p. We have that p+w=1. The probability that an individual has 2 r alleles is given by w*w since for each allele position the probability is w. Only these individuals have a White phenotype. Hence, we get that w^2=\frac{1759}{1759+11088}; the right hand side is the proportion of white birds in the total population. Doing the calculations, this yields that w=0.37. From this, we calculate that p=0.63. The possible ways we have heterozygous individuals are the combinations Rr and rR. The probability for each of those is p*w. Thus, the total probability is 2pw. This is equal to 0.466=0.47. This is the fraction of the future population that is going to be heterozygous assuming the conditions of the Handy-Weinberg equilibrium like random reproductive matching etc.
7 0
3 years ago
How do these two systems (circulatory and respiratory system ) maintain homeostasis
lutik1710 [3]

Answer:

I think its that the circulatory system keeps blood flowing and supplies blood to the organs and keeps the heart pumping and the respiratory system keeps you breathing an supplies oxygen to the organs

Explanation:

7 0
2 years ago
At what point is meiosis involved in the plant life cycle
Mazyrski [523]
Meiosis is invovled in the production of gametos (sex cells) so that the plant can reproduce. This usually happens during the time the plant is flowering
6 0
2 years ago
Fossils show that ancestors of the giraffe had shorter necks than the modern giraffe. The evolution of the modern giraffe may be
MaRussiya [10]

Answer:

B. Directional selection

Explanation:

When natural selection starts to choose one phenotypes that is an extreme (as in, a really small neck or a really long neck), this is an example of <u>directional selection.</u> It makes sense for giraffes to have evolved this way, because the longer the neck, the more ably they can eat food from high branches. The more food they could get, the more chance of reproduction, the more "evolutionarily fit" they are.

Stabilizing selection is when national selection picks average phenotypes (like a medium-sized neck). Disruptive selection is when the extremes are both picked (like all the medium-sized neck giraffes die, and two different species start to emerge). Sexual selection is picking a mate based on traits. Clearly, those answers don't work here.

8 0
3 years ago
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