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s344n2d4d5 [400]
3 years ago
13

Every element in the first period has _____ shell for its _____. Every element in the second period has _____ its _____.

Biology
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

Every element in the first period has 1 shell for its electrons. Every element in the second period has 2 shells for its electrons

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While on a hike, you notice that several burrs have become attached to your socks. You quickly pull them off. Burrs are produced
igor_vitrenko [27]

Answer:

The correct answer is "fruit; seed dispersal".

Explanation:

Fruits are plant adaptions that allow them to disperse their seeds by offering food to animals. In this case the plants have adapted to attach their seeds to the fur of animals instead of offering food. Therefore, the burrs are a type of fruit that is not eaten by animals, but the plants achieve its goal that is seed dispersal.

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4 years ago
What is the mutation responsible for sickle cell disease
DochEvi [55]
The mutation is a change in just one nucleotide in the gene for hemogloblin.
5 0
3 years ago
In a pea plant that is heterozygous for seed color what
asambeis [7]

Answer:

1/4.

Explanation:

The Mendel is known as father of genetics. He explained the concept of dominance, law of segregation and law of independent assortment while working on the pea plant.

The cross between the heterozygous seed color (Ss × Ss), result in the 3/4 dominant phenotype ( SS, Ss and Ss ) and 1/4 recessive phenotype with alleles ss.

Ss   ×   Ss

progeny obtained are SS, Ss, Ss and ss.

Thus, the correct answer is option (3).

3 0
3 years ago
Plants require certain materials to make food through photosynthesis and to grow successfully. From where do plants get the mate
algol13

Answer:

Correct answer:

Plants need sunlight for the process of photosynthesis but the materials they need for growth primarily come from water and air. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight.

Explanation:

5 0
3 years ago
A hormone is like...
yKpoI14uk [10]

Answer:

it's just my guess, but I think it's b.

Explanation:

but im not sure yet

8 0
2 years ago
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