Options found elsewhere:
-always genetically identical to one parent
-always genetically identical to both parents
-never genetically identical to one parent
-sometimes genetically different than both parents
Answer:
-sometimes genetically different than both parents
Explanation:
Protists are eukaryotes that cannot be classed as animals, plants, or fungi. They are quite diverse. Examples include amoeba, plasmodium, and slime mould.
Because they are so diverse, protists also have very different modes of reproduction. Some protists undergo asexual reproduction, where they simply make a copy of themselves without a mate. Others undergo sexual reproduction.
Therefore, the only option that can be correct is "-sometimes genetically different than both parents" .
If they were always genetically identical to one parent or both parents, that would mean that sexual reproduction could not be possible. If they were never genetically identical to one parent, that would mean that asexual reproduction could not be taking place.
C) because solar, wind, hydro, geothermal, biomass, ocean are all was thaer
<span>The common difference between the three organisms
is the area in which they specifically live or stay in the ocean. Planktons can’t
be seen by the naked eye and they require microscopes to be detected. Planktons
usually float in the water and they cannot move on their own that’s why they
are dependent in the movement of the water.
Nektons are organisms that swim through the water and they live in different
depths in the ocean ecosystem. Nektons are composed of fish and other mammals
that propel themselves through the water.
Benthos are organisms that live in the ocean floor and many of these organisms
stay in one place by attaching themselves to rocks. This adaptation protects
them from crashing waves and drastic water movements. Other benthos are known
to burrow in the ocean floor either for food or protection.</span>
the answer D. Giant impact hypothesis or large impact hypothesis
The origin of the Moon refers to several explanations regarding the formation process of the Moon, Earth's natural satellite. Theory The large collision hypothesis is the best-known theory regarding the origin of the moon.
<h2>Further explanation
</h2>
The big collision hypothesis theory states that the Moon was formed from debris left over from a collision between Earth and an object the size of the planet Mars, about 4.5 billion years ago. The object that crashed into the Earth is often called Theia taken from the Greek Titan myth, which is the mother of Selene, the goddess of the Moon.
Other hypotheses about the origin of the moon:
- Catching Hypothesis. This hypothesis says that the Moon is an object captured by the Earth.
- Cleavage Hypothesis. This hypothesis says, in the old days, the Earth was spinning very quickly throwing some of its mass.
- Accretion Hypothesis. This hypothesis says that the Earth and the Moon formed at the same time as a double system of ancient accretion disks in the Solar System.
- The Georeactor Explosion Hypothesis. Another more radical hypothesis was published in 2010, saying that the Moon might have been created by a georeactor explosion located along the boundary of the mantle's core in the rapidly rotating equatorial plane of the Earth. This hypothesis can explain the similarity of the composition of the Earth and the Moon.
Learn more
- about the hypothesis of the creation of the moon brainly.com/question/12687557
- about the big collision hypothesis brainly.com/question/12687557
Details
Class: Middle School
Subject: Biology
Keywords: Hypothesis, Moon, Big Collision Hypothesis
Answer:
The correct answer is 3: "<em>High levels of Ca2+ are expected to be found </em><em>within the sarcoplasmic reticulum</em>".
Explanation:
Muscular contraction is a highly regulated process that depends on free calcium concentration in the cytoplasm. Amounts of cytoplasmic calcium are regulated by <u>sarcoplasmic reticulum</u> that functions as a storage of the ion.
When a nerve impulse reaches the membrane of a muscle fiber, through acetylcholine release, the membrane depolarizes producing the entrance of calcium from <u>extracellular space</u>. The impulse is transmitted along the membrane to the sarcoplasmic reticulum, from where calcium is released. At this point, <em>tropomyosin is obstructing binding sites for myosin on the thin filament</em>. The calcium channel in the sarcoplasmic reticulum controls the ion release, that activates and regulates muscle contraction, by increasing its cytoplasmic levels. When <em>calcium binds to the troponin C</em>, <em>the troponin T alters the tropomyosin by moving it and then unblocks the binding sites,</em> making possible the formation of <em>cross-bridges between actin and myosin filaments.</em> When myosin binds to the uncovered actin-binding sites, ATP is transformed into ADP and inorganic phosphate.
Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.
