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dusya [7]
3 years ago
6

(GIVING BRAINLIEST!)

Biology
2 answers:
ehidna [41]3 years ago
6 0

Answer: C

Explanation:

It made sense.

Alja [10]3 years ago
3 0

Answer:

B

Explanation:

B is incorrect because oceans are not the main source of drinking water. They contain the most water, but the ocean is not drinkable as it is much too salty and would lead to dehydration and the shriveling up of cells, causing death if it was the only water you drank. Usually only small island countries will have to resort to drinking ocean water after desalinating it, but most of the world gets their water from other sources such as groundwater, springs, lakes, and rivers.

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The Brazil nut tree, Bertholletia excels (n = 17), is native to tropical rain forests of South America. It is a hardwood tree th
Anna71 [15]

Answer:

Answer is option A.

Orchid bees are to Brazil nut trees as breezes are to pine trees.

Explanation:

In Brazil nut trees, the female orchid bees act as pollinators that help in pollination. In pine trees, wind or breeze helps in pollination.

Pine trees are gymnosperms and so they do not have flowers to attract pollinators like bees or butterflies or birds. They are wind-pollinated. Pine trees are monoecious i.e., both male and female reproductive structures (pine cones) are present on the same tree.

The male cones (catkins) produce pollen grains that are lightweight, less sticky and have air bladders or small wing-like structures. As a result of these features, the pollen grains can be easily carried and dispersed by the breeze. In order to prevent self pollination (pollen falling on the female cones of the same tree), the male cones are normally located on the lower branches of the pine tree.  

The female cones are located on the upper branches of the tree and the center of the cone contains eggs or ovules. The pollen grains that are carried by the wind, fall on the female cone of another pine tree. Each pollen grain grows a pollen tube into the center of the cone and the nucleus cell of the pollen travels through the tube and reaches the egg, where it combines with the egg to form an embryo. The embryo eventually grows into a seed. The seeds of pine trees are then dispersed by wind or animals such as squirrels.

6 0
3 years ago
When hypothesizing a possible phylogeny in order to classify taxa,scientists incorporate systematics to
Svet_ta [14]

Answer:

B)provide molecular or genetic information, as well as morphological information.

Explanation:

Systematics is the science of classification and phylogeny reconstruction. Studies diversity as a consequence of evolutive history and establishes the bases to reconstruct biological patterns and formulate hypotheses to explain the processes of these patterns. It reconstructs the origin and diversification of a taxon. Systematics creates systems of classification represented in a tree. Taxonomy is based on systematics.

The main goal of systematics is to solve the genealogical relationship between different species and biological groups that produces natural clusters.

Systematic considers morphological characters, as well as physiological, cytological, molecular, and behavioral characters.  

5 0
2 years ago
Explain a chromosome insertion and the effect it can have on a human.
Ivan

The correct answer is:

It occurs when part of a chromosome breaks off and attaches to another chromosome.

It results in the duplication of these genes on the same chromosome.

Fragile X syndrome can occur where a person would have 700 insertion repeats.

Difficulties include delay in crawling or walking, hyperactive or impulsive behavior, mental retrdation, flat feet, flexible joints, and large body size.


Hope it helps!

5 0
3 years ago
Read 3 more answers
Sam can see an organelle in a plant cell under the microscope that is green. Which organelle is it most likely?
Andrej [43]
it is D chloroplast
5 0
3 years ago
Read 2 more answers
The net force on a vehicle is accelerating at a rate of 1.5m/s^2 is 1,800
maksim [4K]

Answer:

1200kg=1.5/s2f=1800nm=?f=MaM=f/a=1800=2500kg

4 0
3 years ago
Read 2 more answers
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