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Margarita [4]
3 years ago
13

Which era contains the Jurassic Period? A. Cenozoic Period B. Mesozoic C. Paleozoic D. Precambrian

Biology
1 answer:
I am Lyosha [343]3 years ago
5 0
The answer is B. Mesozoic.
Hope that helped you.
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coldgirl [10]

Explanation:

Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.[1] In other words, it is the gradual growth of an ecosystem over a longer period of time.[2][3]

Primary succession occurring over time. The soil depths increase with respect to the increase in decomposition of organic matter. and there is a gradual increase of species diversity in the ecosystem. The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.

Primary succession on Rangitoto Island

In contrast, secondary succession occurs on substrate that previously supported vegetation before an ecological disturbance from smaller things like floods, hurricanes, tornadoes, and fires which destroyed the plant life.[4]

7 0
3 years ago
PLEASE HELP ITS URGENT. Due within 15 minutes!!!
Lostsunrise [7]

________________________________

<h3>1. YES - Because progression is shown.</h3><h3 /><h3>2. NO - Because the data is evidence that the athlete can run much faster.</h3>

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8 0
2 years ago
If a female fruit fly heterozygous for red eyes (XRXr) crossed with a white-eyed male (XrY), what percent of their offspring wou
Crazy boy [7]

Answer:

50%

Explanation:

Hello!

We can observe that:

R red eyes

r white eyes

The possible gametes for the female are XR and Xr.

The possible gametes for the male are Xr and Y

Xr Y

XR XRXr XRY

Xr  XrXr XrY

The expected offspring is:

a red-eyed female (XRXr)

a red-eyed male (XRY)

A female with white eyes (XrXr)

A white-eyed male (XrY)

Success in your homework!

8 0
2 years ago
DNA replication occurs prior to meiosis and _________.
Evgesh-ka [11]
A. Mitosis is the correct answer.

DNA replication occurs in the two major types of cell division: mitosis and meiosis.

Mitosis is the splitting of a normal cell into two daughter cells and involves complete replication of the cells DNA to produce two identical copies. Meiosis is a specialised and more complex two-stage form of cellular division related to sex cells and involves DNA replication followed by an exchange of DNA material within/between the chromosomes to mix genes from both parents and produce daughter cells with half the number of chromosomes as the original parent cell. Animal sperms and eggs are examples of cells produced by meiosis and contain half the number of chromosomes as normal cells. When combined during fertilization the egg and sperm produce a cell with the full compliment of chromosomes.

Cytokinesis is a part of the cellular life cycle that is related specifically to the division of the cytoplasm (basically the "soup" of material inside the cell). It is part of the cellular division process but not specifically related to nuclear division (i.e. DNA replication).

Transcription relates to the production of RNA from DNA which is then used for protein synthesis. DNA is not replicated during the transcription process, rather, this is a separate process critical for the production of proteins by the cell.
6 0
3 years ago
- comparing species definitions three of the most prominent definitions of species are the biological species concept, the phylo
wariber [46]
It is different types of species about .biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept
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